diff options
Diffstat (limited to 'board/scalys/simc-t10xx/pci.c')
| -rw-r--r-- | board/scalys/simc-t10xx/pci.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/board/scalys/simc-t10xx/pci.c b/board/scalys/simc-t10xx/pci.c index 9a02f90..8adcc4b 100644 --- a/board/scalys/simc-t10xx/pci.c +++ b/board/scalys/simc-t10xx/pci.c @@ -1,5 +1,5 @@ /* - * Copyright 2017 Scalys B.V. + * Copyright 2020 Scalys B.V. * opensource@scalys.com * * Copyright 2013 Freescale Semiconductor, Inc. @@ -14,9 +14,13 @@ #include <libfdt.h> #include <fdt_support.h> #include <asm/fsl_serdes.h> +#include "dragonfruit.h" void pci_init_board(void) { + int serdes_config; + uint32_t boot_source; + ccsr_gur_t __iomem *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); uint32_t *gpio1_gpdir = (uint32_t *) 0xffe130000; uint32_t *gpio1_gpdat = (uint32_t *) 0xffe130008; @@ -24,14 +28,16 @@ void pci_init_board(void) uint32_t *gpio2_gpdat = (uint32_t *) 0xffe131008; uint32_t regval; - /*debug("%s\n", __FUNCTION__);*/ - - /*TODO, when present pins are available on the board, use them to enable only active slots*/ + + /* SERDES configuration is determined boot time through the RCW config. + * It is located in the fourth RCW word (bit 128-135 of the RCW). */ + serdes_config = ( in_be32(&gur->rcwsr[4]) >> 24); + /* Configure SERDES lane multiplexing on Dragonfruit carrier */ + scalys_carrier_setup_muxing(serdes_config); #if 0 /* Dragonfruit Carrier board 1.x */ - /* * IRQ[0-3] : PCIe present detect signals * IRQ[0] : SLOT1_PRSNT2_N : XXX @@ -57,7 +63,7 @@ void pci_init_board(void) out_be32(gpio1_gpdir, regval); #else - /* Dragonfruit Carrier board 2.x */ + /* Dragonfruit Carrier board 2.x/3.x */ /* * PCIe present detect signals: * IRQ[3] : GPIO1_23 : SLOT1_PRSNT2_N |